公开(公告)号：US09632901B2

公开(公告)日：2017-04-25

申请号：US14846870

申请日：2015-09-07

Applicant: Mellanox Technologies Ltd.

Inventor： Shlomo Raikin ,  Shachar Raindel ,  Noam Bloch ,  Liran Liss

IPC: G06F11/30 ,  G06F12/10 ,  G06F13/16 ,  G06F13/38 ,  G06F12/08 ,  G06F12/1009 ,  G06F12/109 ,  G06F12/0891

CPC classification number: G06F11/3065 ,  G06F12/0891 ,  G06F12/1009 ,  G06F12/109 ,  G06F13/1663 ,  G06F13/385 ,  G06F2212/653 ,  G06F2212/657

Abstract: A method for data transfer includes receiving in a data transfer operation data to be written by a peripheral device to a specified virtual address in a random access memory (RAM) of a host computer. Upon receiving the data, it is detected that a page that contains the specified virtual address is marked as not present in a page table of the host computer. The peripheral device receives a notification that the page is not present and an estimate of a length of time that will be required to make the page available and selects a mode for handling of the data transfer operation depending upon the estimate.

公开(公告)号：US20160117277A1

公开(公告)日：2016-04-28

申请号：US14918599

申请日：2015-10-21

Applicant: Mellanox Technologies Ltd.

Inventor： Shachar Raindel ,  Liran Liss

IPC: G06F13/38 ,  G06F13/40 ,  G06F13/42

CPC classification number: G06F13/385 ,  G06F9/546 ,  G06F13/404 ,  G06F13/4068 ,  G06F13/4282

Abstract: A method for interaction by a central processing unit (CPU) and peripheral devices in a computer includes allocating, in a memory, a work queue for controlling a first peripheral device of the computer. The CPU prepares a work request for insertion in the allocated work queue, the work request specifying an operation for execution by the first peripheral device. A second peripheral device of the computer submits an instruction to the first peripheral device to execute the work request that was prepared by the CPU and thereby to perform the operation specified by the work request.

Abstract translation: 中央处理单元（CPU）和计算机中的外围设备的交互方法包括在存储器中分配用于控制计算机的第一外围设备的工作队列。 CPU准备在分配的工作队列中插入的工作请求，工作请求指定由第一外围设备执行的操作。 计算机的第二外围设备向第一外围设备提交指令以执行由CPU准备的工作请求，从而执行由工作请求指定的操作。

公开(公告)号：US20150029853A1

公开(公告)日：2015-01-29

申请号：US14338488

申请日：2014-07-23

Applicant: Mellanox Technologies Ltd.

Inventor： Shachar Raindel ,  Noam Bloch ,  Liran Liss ,  Diego Crupnicoff ,  Marina Lipshteyn

IPC: H04L12/801 ,  H04L12/851 ,  H04L12/931

CPC classification number: H04L47/127 ,  G06F3/0662 ,  G06F3/0664 ,  H04L12/4633 ,  H04L47/2441 ,  H04L49/50 ,  H04L49/70

Abstract: In a data network congestion control in a virtualized environment is enforced in packet flows to and from virtual machines in a host. A hypervisor and network interface hardware in the host are trusted components. Enforcement comprises estimating congestion states in the data network attributable to respective packet flows, recognizing a new packet that belongs to one of the data packet flows, and using one or more of the trusted components and to make a determination based on the congestion states that the new packet belongs to a congestion-producing packet flow. A congestion-control policy is applied by one or more of the trusted components to the new packet responsively to the determination.

Abstract translation: 在数据网络中，虚拟化环境中的拥塞控制在来自主机中的虚拟机的数据包流中实施。 主机中的管理程序和网络接口硬件是可信组件。 执行包括估计可归因于相应分组流的数据网络中的拥塞状态，识别属于数据分组流之一的新分组，以及使用一个或多个可信组件，并基于拥塞状态进行确定 新分组属于产生拥塞的分组流。 响应于该确定，拥塞控制策略由一个或多个可信任组件应用于新分组。

公开(公告)号：US20140122828A1

公开(公告)日：2014-05-01

申请号：US13665946

申请日：2012-11-01

Applicant: MELLANOX TECHNOLOGIES LTD.

Inventor： Michael Kagan ,  Noam Bloch ,  Liran Liss ,  Shachar Raindel

IPC: G06F12/10

CPC classification number: G06F12/1081

Abstract: A method for memory access includes maintaining in a host memory, under control of a host operating system running on a central processing unit (CPU), respective address translation tables for multiple processes executed by the CPU. Upon receiving, in a peripheral device, a work item that is associated with a given process, having a respective address translation table in the host memory, and specifies a virtual memory address, the peripheral device translates the virtual memory address into a physical memory address by accessing the respective address translation table of the given process in the host memory. The work item is executed in the peripheral device by accessing data at the physical memory address in the host memory.

Abstract translation: 一种用于存储器访问的方法包括在主机操作系统在中央处理单元（CPU）上运行的主机操作系统的控制下维护主机存储器，用于由CPU执行的多个进程的各自的地址转换表。 在外围设备中接收与给定进程相关联的工作项，在主机存储器中具有相应的地址转换表，并指定虚拟存储器地址时，外围设备将虚拟存储器地址转换为物理存储器地址 通过访问主机存储器中给定进程的相应地址转换表。 通过访问主机存储器中的物理存储器地址上的数据，在外围设备中执行工作项。